''Alphanecrovirus'' is a genus of
viruses, in the family ''
Tombusviridae''. Plants serve as natural hosts. There are four species in this genus.
Taxonomy
The genus contains the following species:
* ''
Olive latent virus 1
The olive, botanical name ''Olea europaea'', meaning 'European olive' in Latin, is a species of small tree or shrub in the family (biology), family Oleaceae, found traditionally in the Mediterranean Basin. When in shrub form, it is known as '' ...
''
* ''
Olive mild mosaic virus
The olive, botanical name ''Olea europaea'', meaning 'European olive' in Latin, is a species of small tree or shrub in the family Oleaceae, found traditionally in the Mediterranean Basin. When in shrub form, it is known as ''Olea europaea' ...
''
* ''
Potato necrosis virus
The potato is a starch#Food, starchy food, a tuber of the plant ''Solanum tuberosum'' and is a root vegetable native to the Americas. The plant is a perennial plant, perennial in the nightshade family Solanaceae.
Wild potato species can be fo ...
''
* ''
Tobacco necrosis virus A
''Tobacco necrosis virus A'' is a plant pathogenic virus of the family ''Tombusviridae''.
Hosts and symptoms
Tobacco necrosis virus (TNV) can thrive on a handful of viable hosts. These hosts include tobacco, zucchini, cucumbers, carrots, French ...
''
Structure
Viruses in ''Alphanecrovirus'' are non-enveloped, with icosahedral and spherical geometries, and T=3 symmetry. The diameter is around 28 nm. Genomes are linear, around 4kb in length.
[
]
Life cycle
Viral replication is cytoplasmic. Entry into the host cell is achieved by penetration into the host cell. Replication follows the positive stranded RNA virus replication model. Positive stranded RNA virus transcription, using the premature termination model of subgenomic RNA transcription is the method of transcription. The virus exits the host cell by tubule-guided viral movement. Plants serve as the natural host. Transmission routes are mechanical, seed borne, and contact.[
]
References
External links
Viralzone: Alphanecrovirus
ICTV
{{Taxonbar, from=Q18822334
Tombusviridae
Virus genera